The Evans Hydraulic Glass tom drumhead features two plies sandwiching a thin layer of oil, giving the head an especially fat, deep, and short sound - made famous by early-70s rock. The oil decreases sustain, while enhancing attack and low end. Plus, Evans Hydraulic Glass drumheads are famously easy to tune, so they're a great choice for troublesome drums - or beginning players wanting instant access to great sound.
Evans Hydraulic Glass Drumhead Features: